[INFO] crate vt100 0.1.2 is already in cache
[INFO] checking vt100-0.1.2 against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] extracting crate vt100 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate vt100 0.1.2 on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate vt100 0.1.2
[INFO] finished tweaking crates.io crate vt100 0.1.2
[INFO] tweaked toml for crates.io crate vt100 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ca1e55e138681d3f8d5776206b0b8313745534d71ca67e8deffbfd209960a6a
[INFO] running `"docker" "start" "-a" "7ca1e55e138681d3f8d5776206b0b8313745534d71ca67e8deffbfd209960a6a"`
[INFO] [stderr]    Compiling vt100 v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]  --> build.rs:6:68
[INFO] [stderr]   |
[INFO] [stderr] 6 |         .unwrap_or_else(|e| { panic!("couldn't get cwd: {}", e) });;
[INFO] [stderr]   |                                                                    ^ help: remove this semicolon
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> build.rs:10:68
[INFO] [stderr]    |
[INFO] [stderr] 10 |         .unwrap_or_else(|e| { panic!("couldn't get cwd: {}", e) });;
[INFO] [stderr]    |                                                                    ^ help: remove this semicolon
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'gcc::compile_library': crate has been renamed to `cc`, the `gcc` name is not maintained
[INFO] [stderr]   --> build.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     gcc::compile_library("libvt100wrappers.a", &["src/ffi.c"]);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: failed to run custom build command for `vt100 v0.1.2 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/vt100-b7a3259db5910b87/build-script-build` (exit code: 2)
[INFO] [stderr] --- stdout
[INFO] [stderr] mkdir: cannot create directory 'build/': Read-only file system
[INFO] [stderr] make: *** [build/] Error 1
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "7ca1e55e138681d3f8d5776206b0b8313745534d71ca67e8deffbfd209960a6a"`
[INFO] running `"docker" "rm" "-f" "7ca1e55e138681d3f8d5776206b0b8313745534d71ca67e8deffbfd209960a6a"`
[INFO] [stdout] 7ca1e55e138681d3f8d5776206b0b8313745534d71ca67e8deffbfd209960a6a